Black Marrows are named for their dark colored hides which are encased in a distinct exoskeleton. Their skull and the top edges of their spine push out from under the skin as they age. As such, their young need excessive amounts of calcium for this armor to develop. The older a Black Marrow dragon is, the more skeletal their appearance. They often use their skeletal looks to lure in foolish scavengers or terrify predators. These vicious dragons love nothing more than to crack open bones with their stony beaks and eat the marrow inside. Voracious scavengers, Black Marrows will swarm and devour corpses both old and fresh, sometimes even dragging larger finds to the water to allow them to “ripen.” Despite their dreadful demeanour and often horrid stench, Black Marrows are devoted mates and parents.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Ominous, mysterious, and dark, this eerily morbid Black Marrow almost radiates a tenebrous aura. Shadow Halloween is sly and sneaky, and she is an excellent thief. Prone to stealing the bones from other dragons' meals, she doesn't get caught often. Even when she is caught in the act, her frighteningly hideous visage and reeking stench usually scare away the original owner of the bones. Lurking in the shadows is her specialty. When mothers tell their children about the dragon that will eat them if they don't behave, Shadow is the type of dragon the children imagine. She is the embodiment of a skeletal nightmare, a dragon one hopes never to meet. Shadow Halloween redefines malevolence itself with the sheer level of her unmasked malice.